Improvement in buts



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@gamut THOMAS W, BROWN, OF READING, PENNSYLVANIA.

' Laten Pawn: No. 85,902, dated Jawa/ry 19,1869.

IMPROVEMENT IN B'UTSf The Schedule refer-red, to in these Letters Patent and making part of the name.

To alll persons to whom these presents may come:

ABe it known that I, THoMAs W. BROWN, of .Beading, in the county of Berks, and State of Pennsylvania, have invented a new and useful Improvement in Door- Hinges and I do heleby the same to be fully described in the following specification, and represented in the accbmpanying drawings, of which- Figure 1 is an elevation of one of my improved hinges.

Figure 2 is a transverse section, taken through its joint.

Figure 3 is a side view of one of the joint-pins, and its retainer.

Figure 4 isa transvelse sec 'on of such pin and retainer.

It has long been a desideratum, to obtain a hinge to take the place oi' common iight and lefifhand huts,or, in other words, one susceptible of being appliedto either the right or left edge of a door, and of admitting of the detachment of the doorfrom its frame, without rst requiring disconnection of either ofthe leavesI ofthe hinge with the partto which it might be screwed, whether such part be the door or the frame.

It is well known that what is termed a iight but, or one adapted for use against the right edge of a door, cannot be used on the left edge thereof, for, were it so applied, the door would drop with the part of the hinge ixed to it,'and would uncouple the leaves of the hinge. So, a left but cannot be appliedto the right edge of adoor, for the same reason. Thus, hardware-dealers have been obliged to keep for sale two kinds of detachable buts, or what are termed right huts and left buts.

By detachable buts I mean hinges which are so made that one leaf has the hinge-pin attached to it,

' and may be separated from the other by raising the leaf, so as to draw the pin out of the socket of the other leaf, all of which is well understood by artifice-rs, joiners, and various other-persons skilled in carpentry.

My improved hinge can be applied to either vertical edfre of a door, and, when so applied, will readily admi?. of the door, with the hinge-portion or portions fastened to it, being removed from the door-frame, and the remaining port-ion or portions of the hinge connected therewith. Thus, with my hinge, the necessity of keeping the right and leit buts for sale, and the liability oi' loss in interest and in other respects by such,will be saved to the hardware-dealer.

In the drawings- A and B denote the two leaves of the hinge, 'they being provided with cylindrical-j oint connections, a b c.

1 The middle part b projects from the leaf B, while the other parts u, c are extended from the leaf A.

In carrying out my invention, I empio y two separate joint-ping() O', and provide each of them'with an annular split ring or friction-spring retainer, d, whose office is to hold, by friction, against the bore of the joint, the` joint-pin in place therein. For this purpose, the shank of the joint-pin is grooved transversely around it, and the friction-.spring annulus is made to clasp the shank' where so grooved, the groovealso serving to keep the annulus in its proper relation with the shank.`

The annulus, being a short ring or tube, split through its circumference from end to end, will, when the pin is introduced into the bore of the joint, expand against the said bore, and thereby hold the pin in place there:

in, particularly when the pinv is inverted, or is in the position` of the pin C.

Each of the pins I extend into the middle joint-bar b, preferring to make the said part with separated sockets for the pins, that is, as shown at e e in iig. 2.

In this way I save the labor of drilling or boring entirely through the joint-part b.

By boring each pin-passage or bore separately, and u i at one and the same time, by two boring-tools or drills,

I am able to form the passagesin better alignment,

and, in other respects, to better advantage than they can be with one long drill or boring-tool, which is liable, while in use, to spring or deviate from a right line.

When the hinge, so made, is applied' or fastened to a door and its frame, we haveonly to withdraw the pins C G from their sockets in order to enablc'us to detach the door from the frame. The hinge may be applied to either edge of the door.

The friction-spring,'while retaining the joint-pin in place in its socket,'enables it to revolve or turn with a leaf of the hinge.

Each pin has an acor -shaped head, f, for the purpose of ornament, as well as to enable the pin to be either extracted from or put in place in its socket by the thumb and fore-ringer of a person.

I make no claim to a joint-pin, nor to the frictionretainer applied thereto; nor do I claim the two leaves and their hinge-connections a b c, as all such parts, when separately considered, are old.

What I claim as my invention, is-

The combination and arrangement of the two separate j oint-pins and their friction-retainers d cl, with the two leaves A B, and their joint-connections a b c.

THOMAS W. BROWN.

Witnesses:

R. H. EDDY, SAMUEL N. PIPER. 

